Full code after the jump.

The following example(s) require Flash Player 10 and the Adobe Flex 4 SDK. To download the Adobe Flash Builder 4 trial, see http://www.adobe.com/products/flex/. To download the latest nightly build of the Flex 4 SDK, see http://opensource.adobe.com/wiki/display/flexsdk/Download+Flex+4.
For more information on getting started with Flex 4 and Flash Builder 4, see the official Adobe Flex Team blog.

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2009/11/11/creating-an-animated-transition-when-scrolling-through-items-in-a-spark-hgroup-container/ -->
<s:Application name="Spark_HGroup_horizontalScrollPosition_test"
        xmlns:fx="http://ns.adobe.com/mxml/2009" 
        xmlns:s="library://ns.adobe.com/flex/spark" 
        xmlns:mx="library://ns.adobe.com/flex/halo">
 
    <fx:Script>
        <![CDATA[
            import spark.core.NavigationUnit;
 
            protected function scrollToThere(dir:uint):void {
                var value:Number = hGr.getHorizontalScrollPositionDelta(dir);
                if (value != 0) {
                    pth.valueBy = value;
                    anim.play();
                }
            }
        ]]>
    </fx:Script>
 
    <fx:Declarations>
        <s:Animate id="anim" target="{hGr}" duration="500">
            <s:motionPaths>
                <s:SimpleMotionPath id="pth" property="horizontalScrollPosition" />
            </s:motionPaths>
        </s:Animate>
    </fx:Declarations>
 
    <s:Panel title="HGroup horizontalScrollPosition test"
            horizontalCenter="0" verticalCenter="0">
        <s:layout>
            <s:HorizontalLayout verticalAlign="middle" />
        </s:layout>
        <s:Button label="&lt;"
                click="scrollToThere(NavigationUnit.PAGE_LEFT);"
                width="30" />
        <s:HGroup id="hGr"
                requestedColumnCount="3"
                columnWidth="100"
                variableColumnWidth="false"
                height="100"
                clipAndEnableScrolling="true">
            <s:Label text="One" backgroundColor="red" backgroundAlpha="0.1" height="100%" />
            <s:Label text="Two" backgroundColor="red" backgroundAlpha="0.2" height="100%" />
            <s:Label text="Three" backgroundColor="red" backgroundAlpha="0.3" height="100%" />
            <s:Label text="Four" backgroundColor="red" backgroundAlpha="0.4" height="100%" />
            <s:Label text="Five" backgroundColor="red" backgroundAlpha="0.5" height="100%" />
            <s:Label text="Six" backgroundColor="red" backgroundAlpha="0.6" height="100%" />
            <s:Label text="Seven" backgroundColor="red" backgroundAlpha="0.7" height="100%" />
            <s:Label text="Eight" backgroundColor="red" backgroundAlpha="0.8" height="100%" />
            <s:Label text="Nine" backgroundColor="red" backgroundAlpha="0.9" height="100%" />
            <s:Label text="Ten" backgroundColor="red" backgroundAlpha="1.0" height="100%" />
        </s:HGroup>
        <s:Button label="&gt;"
                click="scrollToThere(NavigationUnit.PAGE_RIGHT);"
                width="30" />
    </s:Panel>
 
</s:Application>

This entry is based on a beta version of the Flex 4 SDK and therefore is very likely to change as development of the Flex SDK continues. The API can (and will) change causing examples to possibly not compile in newer versions of the Flex 4 SDK.

 

Full code after the jump.

The following example(s) require Flash Player 10 and the Adobe Flex 4 SDK. To download the Adobe Flash Builder 4 trial, see http://www.adobe.com/products/flex/. To download the latest nightly build of the Flex 4 SDK, see http://opensource.adobe.com/wiki/display/flexsdk/Download+Flex+4.
For more information on getting started with Flex 4 and Flash Builder 4, see the official Adobe Flex Team blog.

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2009/08/25/creating-a-simple-animated-text-ticker-using-the-spark-textinput-control-in-flex-4/ -->
<s:Application name="Spark_TextInput_textDisplay_horizontalScrollPosition_test"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        xmlns:mx="library://ns.adobe.com/flex/halo">
 
    <fx:Script>
        <![CDATA[
            protected function init():void {
                anim.stop();
                pth.valueFrom = 0;
                pth.valueTo = txtInput.textDisplay.contentWidth - txtInput.textDisplay.width;
                anim.play([txtInput.textDisplay]);
            }
        ]]>
    </fx:Script>
 
    <fx:Declarations>
        <s:Animate id="anim"
                duration="10000"
                repeatBehavior="reverse"
                repeatCount="0"
                repeatDelay="500">
            <s:motionPaths>
                <s:SimpleMotionPath id="pth"
                        property="horizontalScrollPosition" />
            </s:motionPaths>
        </s:Animate>
    </fx:Declarations>
 
    <s:TextInput id="txtInput"
            text="BEGIN -- Lorem ipsum dolor sit amet, consectetur adipiscing elit. Pellentesque faucibus laoreet porttitor. Nullam a urna eget augue lacinia sodales ornare in justo. -- END"
            editable="false"
            fontSize="24"
            left="100" right="100"
            horizontalCenter="0" verticalCenter="0"
            creationComplete="init();"
            resize="init();"
            rollOver="anim.pause();"
            rollOut="anim.resume();" />
 
</s:Application>

View source is enabled in the following example.

This entry is based on a beta version of the Flex 4 SDK and therefore is very likely to change as development of the Flex SDK continues. The API can (and will) change causing examples to possibly not compile in newer versions of the Flex 4 SDK.

 

Full code after the jump.

View MXML

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2009/01/27/setting-the-horizontal-scroll-position-in-the-textinput-control-in-flex/ -->
<mx:Application name="TextInput_horizontalScrollPosition_test"
        xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle"
        backgroundColor="white">

    <mx:Script>
        <![CDATA[
            private function textInput_change(evt:Event):void {
                slider.maximum = textInput.maxHorizontalScrollPosition;
            }
        ]]>
    </mx:Script>

    <mx:ApplicationControlBar dock="true">
        <mx:Form styleName="plain">
            <mx:FormItem label="horizontalScrollPosition:">
                <mx:HSlider id="slider"
                        snapInterval="1"
                        liveDragging="true"
                        showTrackHighlight="true" />
            </mx:FormItem>
        </mx:Form>
    </mx:ApplicationControlBar>

    <mx:TextInput id="textInput"
            text="The quick brown fox jumps over the lazy dog."
            horizontalScrollPosition="{slider.value}"
            width="100"
            creationComplete="textInput_change(event);"
            change="textInput_change(event);" />

</mx:Application>

 

Full code after the jump.

View MXML

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2008/04/03/scrolling-the-horizontallist-control-in-flex/ -->
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle"
        backgroundColor="white">

    <mx:Script>
        <![CDATA[
            import mx.events.SliderEvent;

            private function prev():void {
                var pos:int = hList.horizontalScrollPosition-1;
                var min:int = 0;
                var value:int = Math.max(min, pos);
                hList.horizontalScrollPosition = value;
            }

            private function next():void {
                var pos:int = hList.horizontalScrollPosition+1;
                var max:int = hList.maxHorizontalScrollPosition;
                var value:int = Math.min(pos, max);
                hList.horizontalScrollPosition = value;
            }

            private function slider_change(evt:SliderEvent):void {
                hList.horizontalScrollPosition = evt.value;
            }
        ]]>
    </mx:Script>

    <mx:Array id="arr">
        <mx:Object lbl="Illustrator" src="ai_appicon-tn.gif" />
        <mx:Object lbl="Adobe AIR" src="air_appicon-tn.gif" />
        <mx:Object lbl="ColdFusion" src="cf_appicon-tn.gif" />
        <mx:Object lbl="Dreamweaver" src="dw_appicon-tn.gif" />
        <mx:Object lbl="Flash" src="fl_appicon-tn.gif" />
        <mx:Object lbl="Flash Player" src="fl_player_appicon-tn.gif" />
        <mx:Object lbl="Fireworks" src="fw_appicon-tn.gif" />
        <mx:Object lbl="Flex" src="fx_appicon-tn.gif" />
        <mx:Object lbl="Lightroom" src="lr_appicon-tn.gif" />
        <mx:Object lbl="Photoshop" src="ps_appicon-tn.gif" />
    </mx:Array>

    <mx:Panel styleName="opaquePanel">
        <mx:HorizontalList id="hList"
                dataProvider="{arr}"
                itemRenderer="HorizontalListItemRenderer"
                verticalScrollPolicy="off"
                horizontalScrollPolicy="off"
                columnWidth="100"
                columnCount="4"
                rowHeight="100"
                rowCount="1"
                borderSkin="{null}" />
        <mx:ControlBar>
            <mx:Button label="Previous" click="prev();" />
            <mx:HSlider id="slider"
                    minimum="0"
                    maximum="{hList.maxHorizontalScrollPosition}"
                    value="{hList.horizontalScrollPosition}"
                    liveDragging="true"
                    snapInterval="1"
                    tickInterval="1"
                    showDataTip="false"
                    width="100%"
                    change="slider_change(event);" />
            <mx:Button label="Next" click="next();" />
        </mx:ControlBar>
    </mx:Panel>

</mx:Application>

View HorizontalListItemRenderer.mxml

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2008/04/03/scrolling-the-horizontallist-control-in-flex/ -->
<mx:Canvas xmlns:mx="http://www.adobe.com/2006/mxml"
        styleName="plain">

    <mx:Image source="{data.src}"
            horizontalCenter="0"
            verticalCenter="0" />
    <mx:Label text="{data.lbl}"
            fontWeight="bold"
            horizontalCenter="0"
            bottom="0" />

</mx:Canvas>

View source is enabled in the following example.